Non-Billable / Non-Specific Code
ICD-10-CM D43 is the diagnosis code for Neoplasm of uncertain behavior of brain and central nervous system. This code falls under the section "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as D43. They are mutually exclusive:
Understanding where D43 sits in the ICD-10-CM classification helps ensure proper coding:
No, D43 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
D43 is the ICD-10-CM diagnosis code for "Neoplasm of uncertain behavior of brain and central nervous system". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
D43 is located in Section D37-D48 — "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 of the ICD-10-CM Tabular List.
D43 has 7 sub-code(s) that provide more specific detail: D43.0, D43.1, D43.2, D43.3, D43.4 and more.
Use D43 when the patients documented diagnosis matches "Neoplasm of uncertain behavior of brain and central nervous system" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Neoplasm of uncertain behavior of brain and central nervous system is D43.
No, D43 is non-billable. Use a more specific sub-code for primary diagnosis billing.
D43 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for D43 include: neoplasm of uncertain behavior of peripheral nerves and autonomic nervous system (D48.2).
Yes, D43 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.